SBAS349F August   2005  – June 2016 DAC8812

PRODUCTION DATA.  

  1. 1  Features
  2. 2  Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Typical Characteristics
      1. 7.8.1 Channel A—5 V
      2. 7.8.2 Channel B—5 V
      3. 7.8.3 Channel A and B—5 V
      4. 7.8.4 Channel A—2.7 V
      5. 7.8.5 Channel B—2.7 V
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Digital-to-Analog Converters
      2. 8.3.2 Power-On Reset
        1. 8.3.2.1 ESD Protection Circuits
    4. 8.4 Device Functional Modes
      1. 8.4.1 Serial Data Interface
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Relative Accuracy: 1 LSB Max
  • Differential Nonlinearity: 1 LSB Max
  • 2-mA Full-Scale Current ±20%,
    With VREF = ±10 V
  • 0.5-μs Settling Time
  • Midscale or Zero-Scale Reset
  • Separate 4Q Multiplying Reference Inputs
  • Reference Bandwidth: 10 MHz
  • Reference Dynamics: –105-dB THD
  • SPI™-Compatible 3-Wire Interface:
    50 MHz
  • Double Buffered Registers to Enable
    Simultaneous Multichannel Update
  • Internal Power-On Reset
  • Industry-Standard Pin Configuration

2 Applications

  • Automatic Test Equipment
  • Instrumentation
  • Digitally Controlled Calibration

3 Description

The DAC8812 is a dual, 16-bit, current-output digital-to-analog converter (DAC) designed to operate from a single 2.7-V to 5.5-V supply.

The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.

A double-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turnon. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to midscale code when MSB = 1.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DAC8812 TSSOP (16) 5.00 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

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Functional Block Diagram

DAC8812 fbd_bas349.gif